A farmer interviewed in the 70s recalls that before the existence of weather forecasts, the elders used to find out about the weather by observing nature and in particular the birds, the stars, the moon or the sun. Occupations that worked outdoors like farmers had a good knowledge of the weather and could better identify the upcoming weather, a young farmer without this knowledge could make more mistakes than an older farmer.
The farmer interviewed recalls that when he first started as a farm manager, at the age of twenty-three, he had to ask a neighbour for his opinion on the weather in order to start his threshing operations. In response, the old man referred to the time of day and the presence of dew in the morning as an indication that it was not going to rain. Gradually, the farmer learned to predict the weather from his father and the farmworkers who knew exactly how the weather worked.
He also learned about the type of winds that blew and their speed, or the stars in the sky. He recognizes that the farm workers, although often illiterate, were very good at interpreting the weather. Sayings that he translated into Breton mention, for example, that a glowing sun in the evening announces good weather for the next day, or that a glowing sun in the morning announces a poor end of the day, but also that pearly dew equals a golden day.
The arrival of meteorologists in the vicinity of his farm caused people to wonder at first what the meteorologists were going to do because for them the weather had not changed. The off-camera commentary refers to weather as an untutored science, pre-computer wisdom, watching the horizon to see what the weather would be like the next day.
Looking at the time of day and the moon, which is at the first quarter with the points up, taking into account the winds that have come up from the south from the east, the farmer indicates that the good weather can last another eight to fifteen days. The good weather is also confirmed by the song of the birds, blackbirds and thrushes in particular because when the rain arrives, their song is not at all the same.